DisorderMedium Severity

Magnesium Deficiency

Nutrient disorder (Mg deficiency)

A nutrient deficiency affecting the chlorophyll molecule and phosphorus transport. Magnesium is the key element in chlorophyll and functions as a carrier for phosphorus. Most abundant in regions of rapid growth such as stem and root tips. Commonly occurs in wet soils due to magnesium's high solubility.

Peak Season: Most apparent during rapid growth periods, symptoms worsen in wet soil conditions that promote magnesium leaching
Magnesium deficiency showing characteristic interveinal chlorosis patterns

Identification & Symptoms

What to Look For

Chlorosis developing generally or as streaks or bands on leaves
Symptoms vary with plant species and timing of development
Leaf drop as end result of progression
Late stages may show marginal or tip necrosis
Lower leaves may remain deep green while upper leaves show symptoms
In broadleaf plants: interveinal chlorosis patterns
In conifers: moderate chlorosis mainly in upper crown
Conifer crown tips and lower portions may remain deep green

Potential Damage

Reduced photosynthetic efficiency from chlorophyll disruption
Impaired phosphorus transport affecting overall plant nutrition
Premature leaf drop reducing photosynthetic surface area
Marginal or tip necrosis in severe cases
Reduced growth and vigor
Increased susceptibility to other stresses

Lifecycle

Magnesium deficiency develops when soil magnesium is insufficient or when soil conditions prevent uptake. High solubility means magnesium is easily leached from soil, particularly in wet conditions. Deficiency is more common during periods of rapid growth when magnesium demand is highest for new chlorophyll and phosphorus transport.

Professional Treatment Approach

1

Soil testing to confirm magnesium levels and pH

2

Application of magnesium sulfate (Epsom salt) or magnesium-containing fertilizers

3

Foliar applications for quick response in severe deficiencies

4

Improve soil drainage in areas with excessive moisture

5

Professional assessment for systemic injection programs

6

Monitor soil pH as availability decreases in very acidic or alkaline soils

Recommended Mauget Products

Inject-A-Min Manganese

Professional-grade treatment specifically effective against magnesium deficiency.

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Professional magnesium fertilizer programs

Professional-grade treatment specifically effective against magnesium deficiency.

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